System for determining unreturned standby resource usage

ABSTRACT

An apparatus, program product and method for determining unreturned standby resource usage. Unreturned standby resource data is monitored and stored separately from other standby resource data for billing and other accounting purposes.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.10/424,636 filed on Apr. 25, 2003 by Daniel Charles Birkestrand et al.,the entire disclosure of which is incorporated by reference herein.

FIELD OF THE INVENTION

The present invention relates to computing systems, and moreparticularly, to managing temporary resources within a data processingenvironment.

BACKGROUND OF THE INVENTION

Computer resource requirements for commercial and governmentapplications often increase or otherwise fluctuate over time. Forinstance, a business may experience periods of peak activity that exceedcomparable processing or memory requirements of other periods. Inanother scenario, sales or employee growth may similarly burden existingcomputing resources with increased requirements. When faced with theseincreased resource demands, a user would conventionally have to purchasenew hardware resources capable of accommodating the elevated computingneeds. Such purchase requirements can represent a major, if notpreclusive, expenditure for a user, who may have insufficient capital ortime to react to rapid growth requirements.

To this end, computing architectures such as the “capacity on demand”design, developed by International Business Machines Corporation, allowcustomers to effectively “rent” resources such as processors on anas-needed basis. More particularly, a customer may temporarily enablestandby processors that are initially dormant within their machine.Where desired, the standby processors are not included in the up front,baseline cost of the machine. As such, for a relatively smaller initialcapital investment, a customer may activate and deactivate standbyprocessors as needed for a fee.

When enabled in a virtual processor environment, the standby processorsare often shared among multiple processes. Such environmentsconventionally rely upon a single computing machine having one or morephysical controllers, or central processing units (CPUs), to includeboth dedicated and activated standby processors. As such, active standbyprocessors may execute software configured to simulate multiple, virtualprocessors.

Some multiprocessor environments support the conceptual practice oflogical partitioning. Partitioning practices allow a single machine tosimulate the functions of multiple, virtual computers. Moreparticularly, each logical partition provides a programmed architecturesuited for assignment and sharing of computing assets with otherpartitions. For instance, a partition may logically comprise a portionof a standby or dedicated processor, in addition to memory and otherresources assigned by an administrator. As such, an administrator mayallocate the same standby processor to more than one partition. Eachpartition may additionally host an operating system, in addition tomultiple virtual processors. In this manner, each partition operateslargely as if it is a separate computer.

In principle, each virtual processor enabled by a standby processor mayaccess many of the physical resources of the underlying physicalmachine. Exemplary resources may include memory assets and hardwareregisters. Virtual processors may additionally share a priority schemeor schedule that partially dictates allocation of processing cycles asbetween different virtual processors. An underlying program called apartition manager, may use this scheme to assign and dispatch standbyand baseline processors to each virtual processor. For instance, thepartition manager may intercept requests for resources from operatingsystems to globally share and allocate the resources.

In this manner, virtual processors act as logical threads of executionfor a host partition. As such, the virtual processors can separatelyexecute instructions, while sharing a single standby processor, forinstance. By duplicating the utilization of standby processors and otherphysical assets, a partitioned environment can promote betterperformance and efficiency. The programmable flexibility of partitionsmay further allow them to respond to changes in load dynamically withoutrebooting. For example, each of two partitions containing ten virtualprocessors may take over all ten available standby and baselineprocessors of a shared physical system as workload shifts, and withoutrequiring a re-boot or operator intervention.

In such context, selective utilization of standby processors can thusprovide customers with another layer of customized processor access andoptimized usage. Conversely, capacity on demand systems supply systemproviders with a creative way to satisfy customer performance and costrequirements, while additionally providing an increased revenue source.

To this end, the customer's use of the standby processors must bemonitored for billing and other accountability purposes. However, oneproblem that has arisen in connection with accounting for standbyresources usage is that of addressing usages that exceed allottedlimits. For instance, a situation may arise where it is impossible orundesirable to reclaim a standby processor within its prescribed windowof activity. Such a scenario might arise where reclaiming the standbyprocessor would affect an inviolate system requirement. Consequently,supervisory mechanisms are needed so that the billing company canproperly account for unreturned standby processors. It may be desired,for example, to charge a higher fee for unreturned standby processorsthan for those reclaimed within a contractually stipulated time. Otherconsiderations regard how unreturned standby processors should bereclaimed, if at all, when used in excess of the contracted time. Thereis thus a need for an improved manner of determining unreturnedprocessor and other computer resource usage.

SUMMARY OF THE INVENTION

One embodiment consistent with the principles of the present inventionincludes an apparatus, method, and program product configured todetermine usage of an unreturned resource within a capacity on demanddata processing system. In one sense, practices consistent with thepresent invention determine and store unreturned resource usage data.The unreturned usage data is stored separately from expected usage dataassociated with those resources that are returned within a specifiedcontractual window. Such distinction permits separate processing of theunreturned resource usage data, translating into improved billing andother accounting practices.

In arriving at the desired unreturned resource usage output, usage datafor both unreturned and returned standby resources is initiallydetermined. For instance, a count tracking unreturned resource usagedata may be initiated in response to a standby resource operatingoutside of its specified window of activity. “Window of activity” refersgenerally to the expected or contracted usage of a resource. The countmay increment each time a measurable billing occurrence is detected. Anexemplary such occurrence may include one billing day. Where soconfigured, program code consistent with the invention may sample thecount from memory to determine unreturned resource status, and/or toaffect subsequent or current standby resource access. For example, theprogram code may restrict activation of a second standby resource wherea first is unreturned. Other program code consistent with the inventionmay determine unreturned resource usage without interrupting standbyresource activity.

In any case, the unreturned resource usage data may then be processedseparately from the expected resource usage data. For example, theunreturned resource data may be billed out at a different rate thanother usage data. Such processed unreturned usage data may also becommunicated to a billing computer of a provider for purposes ofgenerating an appropriate invoice.

The above and other objects and advantages of the present inventionshall be made apparent from the accompanying drawings and thedescription thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate embodiments of the invention and,together with a general description of the invention given above, andthe detailed description of the embodiments given below, serve toexplain the principles of the invention.

FIG. 1 is a block diagram of a distributed computer system havingsoftware consistent with the invention.

FIG. 2 is a block diagram of the primary software components andresources in the customer computer of FIG. 1.

FIG. 3 is a flowchart having method steps suited for execution by acustomer of FIG. 1.

FIG. 4 is a display configured to receive a standby resource requestinitiated in the flowchart of FIG. 3.

FIG. 5 is a display configured to assign standby resources to thepartitions of FIG. 2 according to the processes of the flowchart of FIG.3.

FIG. 6 is a flowchart having method steps suited for execution by abilling computer of FIG. 1.

FIG. 7 is an exemplary report processed by a billing computer of FIG. 1in connection with method steps of the flowchart of FIG. 6.

FIG. 8 is a flowchart having method steps suited for determiningunreturned resource usage on the customer computer of FIG. 1.

DETAILED DESCRIPTION

An embodiment of the present invention may include an apparatus, programproduct and method for determining unreturned standby resource usage. Inone embodiment, processes consistent with the invention monitor, storeand otherwise treat unreturned standby usage data separately from otherstandby resource data. The usage determination may be used for billingand other accounting purposes. Hardware environments suited forexecution of such an embodiment are illustrated in FIGS. 1 and 2.

Hardware and Software Environment

FIG. 1 illustrates an embodiment of a distributed computer system 10configured to determine usage of unreturned standby resources 18 in amanner that is consistent with the principles of the present invention.More particularly, the system 10 includes at least one apparatus, e.g.,one or more customer computers 12, and one or more billing computers 14.For the purposes of this invention, each computer 12, 14 may representpractically any type of computer, computer system or other programmableelectronic device capable of functioning within a distributed and/or aclient-server environment. Moreover, each computer 12, 14 may beimplemented using one or more networked computers, e.g., in a cluster orother distributed computing system. As is common in many distributedsystems, multiple customer computers 12 will typically interface with agiven billing computer 14. While more capable computer systems maypresent advantages in certain embodiments consistent with the principlesof the present invention, a suitable billing computer 14 for purposes ofthis specification may comprise any device configured to receive andprocess an electronic message transmitted from the customer computer 12.

Customer computer 12 typically includes at least one central processingunit 16, in addition to one or more standby resources 18. As discussedherein, a suitable standby resource that is consistent with theprinciples of the present invention may include an allocatable componentor function of a computing environment. As such, exemplary standbyresources may include processors, memory, plugin cards, input/outputcontrollers, adaptors or devices, and other hardware devices, amongother components. Resources may also comprise multiple such components,e.g., processor cards including multiple processors coupled to localmemory and other components, e.g., for a NUMA-based architecture.

In the illustrated embodiment, standby resource 18 is implemented aprocessor that is dormant until temporarily activated by a user. In sucha case, both the CPU 16 and standby processor 18 may include at leastone microprocessor coupled to a memory 19, which may represent therandom access memory (RAM) devices comprising the main storage ofcomputer 12, as well as any supplemental levels of memory, e.g., cachememories, non-volatile or backup memories (e.g., programmable or flashmemories), read-only memories, etc. For instance, the memory may includeprogram code 42 configured to determine usage of standby resources 18that have not been returned within a specified window of activity totheir dormant state. In addition, memory 19 may be considered to includememory storage physically located elsewhere in computer 12, e.g., anycache memory in a processor in CPU 16 or a smart card, as well as anystorage capacity used as a virtual memory, e.g., as stored on a massstorage device 20 or on another computer coupled to computer 12.

Computer 12 also typically receives a number of inputs and outputs forcommunicating information externally. For interface with a user oroperator, computer 12 typically includes a user interface 22incorporating one or more user input devices (e.g., a keyboard, a mouse,a trackball, a joystick, a touchpad, and/or a microphone, among others)and a display (e.g., a CRT monitor, an LCD display panel, and/or aspeaker, among others). Otherwise, user input may be received viaanother computer or terminal.

For additional storage, computer 12 may also include one or more massstorage devices 20, e.g., a floppy or other removable disk drive, a harddisk drive, a direct access storage device (DASD), an optical drive(e.g., a CD drive, a DVD drive, etc.), smart card and/or a tape drive,among others. An exemplary mass storage may include a register ordatabase 44 that contains usage data generated from stored unreturnedresource, requested resource and resource availability files 48, 56 and52, respectively. As discussed in greater detail below, the system 10may derive such files 48, 56 and 52 from data recorded during regularoperation of the system 10. Of note, one of skill in the art willrecognize that the inclusion and distribution of the databases, filesand other stored data may be altered substantially while stillconforming with the principles of the present invention.

Furthermore, computer 12 may include an interface 24 with one or morenetworks (e.g., a LAN, a WAN, a wireless network, and/or the Internet,among others) to permit the communication of information with othercomputers and electronic devices. It should be appreciated that computer12 typically includes suitable analog and/or digital interfaces betweenCPU 16 and each of components 18, 20, 22 and 24 as is well known in theart.

Similar to customer computer 12, billing computer 14 includes a CPU 26,memory 28, mass storage 29, user interface 32 and network interface 34.Moreover, billing computer 14 may comprise multiple computers of both aprinciple/lessor, as well as that of an agent/licensee.

Computers 12, 14 are generally interfaced with one another via a network36, which may be public and/or private, wired and/or wireless, localand/or wide-area, etc. Moreover, network 36 may represent multiple,interconnected networks. In the illustrated embodiment, for example,network 36 may include the Internet. Such an arrangement facilitatesready access to information stored on the customer computer 12, as wellas timely notifications and program updates.

Each computer 12, 14 operates under the control of an operating system38, 40 and executes or otherwise relies upon various computer softwareapplications, components, programs, objects, modules, data structures,etc. Moreover, various applications, components, programs, objects,modules, etc. may also execute on one or more processors in anothercomputer coupled to computer 12, 14 via a network, e.g., in adistributed or customer-billing computing environment, whereby theprocessing required to implement the functions of a computer program maybe allocated to multiple computers over a network.

In general, the routines executed to implement the embodiments of theinvention, whether implemented as part of an operating system or aspecific application, component, program, object, module or sequence ofinstructions, or even a subset thereof, will be referred to herein as“computer program code,” or simply “program code.” Program codetypically comprises one or more instructions that are resident atvarious times in various memory and storage devices in a computer, andthat, when read and executed by one or more processors in a computer,cause that computer to perform the steps necessary to execute steps orelements embodying the various aspects of the invention. For instance,the embodiment of FIG. 1 includes program code 42 configured todetermine the usage of unreturned standby resources 18. Complementaryprogram code 43 may reside on the billing side, but one of skill in theart should appreciate that embodiments consistent with the principles ofthe present invention may nonetheless use program code resident at onlyone, or any number of locations.

Moreover, while the invention has and hereinafter will be described inthe context of fully functioning computers and computer systems, thoseskilled in the art will appreciate that the various embodiments of theinvention are capable of being distributed as a program product in avariety of forms, and that the invention applies equally regardless ofthe particular type of signal bearing media used to actually carry outthe distribution. Examples of signal bearing media include but are notlimited to recordable type media such as volatile and non-volatilememory devices, floppy and other removable disks, hard disk drives,magnetic tape, optical disks (e.g., CD-ROMs, DVDs, etc.), among others,and transmission type media such as digital and analog communicationlinks.

In addition, various program code described hereinafter may beidentified based upon the application within which it is implemented ina specific embodiment of the invention. However, it should beappreciated that any particular program nomenclature that follows isused merely for convenience, and thus the invention should not belimited to use solely in any specific application identified and/orimplied by such nomenclature. Furthermore, given the typically endlessnumber of manners in which computer programs may be organized intoroutines, procedures, methods, modules, objects, and the like, as wellas the various manners in which program functionality may be allocatedamong various software layers that are resident within a typicalcomputer (e.g., operating systems, libraries, API's, applications,applets, etc.), it should be appreciated that the invention is notlimited to the specific organization and allocation of programfunctionality described herein.

As noted above, tracking of unreturned standby resource usage may beperformed in a number of different computer architectures consistentwith the invention. As an illustration of one particular architecturethat may implement the herein-described functionality, FIG. 2illustrates an implementation of computer 12 as a logically partitionedcomputer system 100. Computer 100 generically represents, for example,any of a number of multi-user computers such as a network server, amidrange computer, a mainframe computer, etc., e.g., an IBM eServercomputer, within which logical partitioning is utilized. However, itshould be appreciated that the invention may be implemented in othercomputers and data processing systems, so the invention is not limitedto this particular implementation.

Computer 100 generally includes one or more processors 112 coupled to amemory 114 via a bus 116. Each processor 112 may be implemented as asingle threaded processor, or as a multithreaded processor, such as withprocessor 112 a, which is shown incorporating a plurality of hardwarethreads 119. For the most part, each hardware thread 119 in amultithreaded processor 112 a is treated like an independent processorby the software resident in the computer. In this regard, for thepurposes of this disclosure, a single threaded processor will beconsidered to incorporate a single hardware thread, i.e., a singleindependent unit of execution. It will be appreciated, however, thatsoftware-based multithreading or multitasking may be used in connectionwith both single threaded and multithreaded processors to furthersupport the parallel performance of multiple tasks in the computer.

In addition, as is also illustrated in FIG. 2, one or more of processors112 (e.g., processor 112 b) may be implemented as a service processor,which is used to run specialized firmware code to manage system initialprogram loads (IPL's), and to monitor, diagnose and configure systemhardware. Generally, computer 100 will include one service processor andmultiple system processors, which are used to execute the operatingsystems and applications resident in the computer, although theinvention is not limited to this particular implementation. In someimplementations, a service processor may be coupled to the various otherhardware components in the computer in a manner other than through bus116. As shown in FIG. 2, system processors may include standbyprocessors 118, in addition to other temporary resources. Whenactivated, these standby processors 118 may function within the computeras any other processor 112.

Memory 114 may include one or more levels of memory devices, e.g., aDRAM-based main storage, as well as one or more levels of data,instruction and/or combination caches, with certain caches eitherserving individual processors or multiple processors as is well known inthe art. Furthermore, memory 114 is coupled to a number of types ofexternal devices via a bus 120, e.g., one or more network adapters 122(for interfacing the computer with network(s) 124), one or more storagecontrollers 126 (for interfacing the computer with one or more storagedevices 128) and one or more workstation controllers 130 (forinterfacing with one or more terminals or workstations 132 via aplurality of workstation adapters).

FIG. 2 also illustrates in greater detail the primary softwarecomponents and resources utilized in implementing a logicallypartitioned computing environment on computer 100, including a pluralityof logical partitions 134 managed by a partition manager 136. Any numberof logical partitions may be supported as is well known in the art, andthe number of logical partitions resident at any time in a computer maychange dynamically as partitions are added or removed from the computer.

In the illustrated IBM eServer-based implementation, partition manager136 is comprised of two layers of program code. The first, referred toherein as a non-dispatchable portion 138, is implemented within thefirmware, or licensed internal code (LIC), of computer 100, which isutilized to provide a low level interface to various hardware componentswhile isolating higher layers, e.g., the operating systems, from thedetails of the hardware access. The firmware may also communicate with aservice processor such as service processor 112 b. The non-dispatchableportion 138 provides many of the low level partition managementfunctions for computer 100, e.g., page table management, etc. Thenon-dispatchable portion 138 also has no concept of tasks, and isaccessible principally via function calls from higher layers ofsoftware.

The second layer of program code in partition manager 136 is referred toherein as a dispatchable portion 147. In contrast to non-dispatchableportion 138, which has no concept of tasks, is run with relocation off,and is accessible via function calls from higher layers of software, thedispatchable portion 147 has the concept of tasks (like any operatingsystem), and is run with relocation on. The dispatchable portiontypically executes in much the same manner as a partition, except thatit is hidden from the user. The dispatchable portion generally manageshigher level partition management operations such as creating anddeleting partitions, concurrent I/O maintenance, allocating processors,memory and other hardware resources to various partitions 134, etc.

Each logical partition 134 is typically statically and/or dynamicallyallocated a portion of the available resources in computer 100, whichmay include either or both of dedicated and standby resources. Forexample, each logical partition may be allocated one or more processors112 and/or one or more hardware threads 119, as well as a portion of theavailable memory space. Logical partitions can share specific hardwareresources such as processors, such that a given processor is utilized bymore than one logical partition. In the alternative hardware resourcescan be allocated to only one logical partition at a time.

Additional resources, e.g., mass storage, backup storage, user input,network connections, and the I/O adapters therefor, are typicallyallocated to one or more logical partitions in a manner well known inthe art. Resources may be allocated in a number of manners, e.g., on abus-by-bus basis, or on a resource-by-resource basis, with multiplelogical partitions sharing resources on the same bus. Some resources mayeven be allocated to multiple logical partitions at a time.

Each logical partition 134 utilizes an operating system 142 thatcontrols the primary operations of the logical partition in the samemanner as the operating system of a non-partitioned computer. Forexample, each operating system 142 may be implemented using the OS/400operating system available from International Business MachinesCorporation.

Each logical partition 134 executes in a separate, or independent,memory space, and thus each logical partition acts much the same as anindependent, non-partitioned computer from the perspective of each userapplication (user app) 144 that executes in each such logical partition.As such, user applications typically do not require any specialconfiguration for use in a partitioned environment.

Given the nature of logical partitions 134 as separate virtualcomputers, it may be desirable to support inter-partition communicationto permit the logical partitions to communicate with one another as ifthe logical partitions were on separate physical machines. As such, insome implementations it may be desirable to support a virtual local areanetwork (LAN) 146 in non-dispatchable portion 138 to permit logicalpartitions 134 to communicate with one another via a networking protocolsuch as the Ethernet protocol. Other manners of supporting communicationbetween partitions may also be supported consistent with the invention.

It will be appreciated that other logically-partitioned environments maybe utilized consistent with the invention. For example, rather thanutilizing a dispatchable portion 147 that is separate from any partition134, the functionality of the dispatchable portion may be incorporatedinto one or more logical partitions in the alternative. It will furtherbe appreciated that the specific resources shown in FIG. 2 are merelyexemplary in nature, and that any combination and arrangement ofresources may be allocated to any logical partition in the alternative.Moreover, it will be appreciated that in some implementations resourcescan be reallocated on a dynamic basis to service the needs of otherlogical partitions.

The various software components and resources illustrated in FIG. 2 andimplementing the embodiments of the invention may be implemented in anumber of manners, including using various computer softwareapplications, routines, components, programs, objects, modules, datastructures and programs. Those skilled in the art will further recognizethat the exemplary environments illustrated in FIGS. 1 and 2 are notintended to limit the present invention. For instance, it should beappreciated that the principles of the present invention may also applyto non-partitioned environments. Indeed, those skilled in the art willrecognize that other alternative hardware and/or software environmentsmay be used without departing from the scope of the invention.

Unreturned Resource Determination Function

The flowchart of FIG. 3 illustrates exemplary methods steps that areconsistent with the principles of the present invention. The methodsteps of the flowchart are particularly suited for a user accessingstandby resources 18 on a capacity on demand system 10 and 100, such asthose described in connection with FIGS. 1 and 2, respectively.Generally, the illustrated process steps 200-256 of FIG. 3 initiatestandby resource activation and usage determination processes inaccordance with the principles of the present invention.

Blocks 200-204 of the embodiment of FIG. 3 include preliminary tasks andconditions that may function within certain applications consistent withthe invention as prerequisites for usage determination. For instance, auser desiring capacity on demand services may initially sign a contractwith a supplier at block 200. In so doing, the user may also agree toallow the supplier and/or their licensee to monitor resource usage.While such monitoring may be accomplished via faxed printouts from thecustomer computer 12 under exceptional circumstances, it typicallyincludes the supplier accessing memory 19 and/or registers residing onthe customer computer 12 via a network link.

To this end, the user may ensure that an Internet or other network linkto their customer computer 12 is established at block 202. Suchassurance enables the monitoring that may be contractually requiredduring predetermined periods of operation. For instance, a billingcomputer 14 may use the network 36 to automatically access the programcode 42 and/or memory 19 of the customer computer 12 on a monthly basis.That is, the program code 42 of one embodiment consistent with theinvention may be configured to upload usage data in response to abilling inquiry.

Presuming compliance with all technical and contractual mandatesstipulated at blocks 200-202, the provider may send an enablement codeto the user at block 204. A typical enablement code comprises analphanumerical sequence or some other password equivalent, but suitableenablement codes may further comprise a prearranged token/key and/orbiometric mechanism. Where desired, the transmission of the enablementcode, as well as the enablement code, itself, may be encoded in anymanner as is known in the art. For instance, encoding may includesynchronization mechanisms between the encoding and decoding software ofthe billing and customer computers, 14 and 12, respectively. Suchprecaution may bolster security and accommodate beneficial formatting ofdata.

At block 206, the user recognizes a current or impending need forincreased processing resources. For instance, the user's baseline, ordedicated, compliment of four processors may be inadequate to handle ananticipated workload and schedule for a new project. As such, the usermay elect to activate available standby resources 18 (comprisingprocessors, for example) on their terminal to accommodate the increasedworkload. To this end, the enablement code provided to the user at block204 may be entered by the user into the customer computer 12 at block208 in order to initiate activation of the standby resources 18.

One of skill in the art will appreciate that the user may enter theenablement code at anytime during a capacity on demand session, and theinsertion of the enablement entry at block 208 relative to the remainingsteps of the flowchart is for exemplary purposes only. As with all ofthe steps of the flowchart of FIG. 3, as well as those that follow, step208 may be rearranged, omitted or augmented within the flowchart whileremaining in accordance with the principles of the present invention.For instance, program code 42 of another embodiment that is consistentwith the invention may cause the billing computer 14 to automaticallydownload the enablement code to the customer computer 12 withoutrequiring effort by the user.

An authentication program 51 on a smart chip or other component of thecustomer computer 12 may verify the enablement code at block 210.Assuming the enablement code is authenticated at block 210, the user maybe presented with a status display at block 212. The status display mayapprize the user of information regarding standby resource activity andavailability. For instance, the status display may confirm for the userthat four standby resources 18 are currently available for activation,while two others are already in use.

Such status information may alternatively or additionally be presentedto the user when making a request for standby resource activation. Theuser initiates such a request at block 214 of FIG. 3. That is, the userinitiates a request at block 214 configured to bring about activation ofone or more standby resources 18. The request typically is received andprocessed by program code 42 of the customer computer 12, whichactivates and assigns the requested standby resources 18 using customerinput and the partition manager 136. However, the billing computer 14 ofanother embodiment consistent with the invention may alternativelyinitiate activation of standby resources 18 in response to receiving asimilar request from the user.

FIG. 4 shows an exemplary display 300 comprising a standby resourcerequest. The display 300 includes fields 302-310 suited to receive userinput. The input may reflect the short term processing requirements ofthe user. The display may further include status information relating tocurrent and past resource usage for reference by the user. For example,field 302 of FIG. 4 shows that the customer computer 12 has eightdedicated processors. The user may enter a number of standbyprocessors/resources 18 to be requested in input field 304, up to thenumber displayed in field 306 of FIG. 4.

Field 305 of FIG. 4 may be used to specify the period(s) of activationfor all of the requested standby resources 18. One of skill in the artwill appreciate that the display 300 of another embodiment consistentwith the invention may allow the user to assign periods of activationper individual standby resources 18. Moreover, while typical suchperiods comprise days, any time increment may be substituted inaccordance with the principles of the present invention. In someembodiments that are consistent with the invention, the program code 42tracks resource utilization in terms of processing or memory measurableunits or capacity, irrespective of or in addition to actual days of use.Such activation terminology and practices may further transfer intobilling practices, where a billable unit, or day, may comprise anymeasurable resource performance characteristic.

The exemplary display 300 of FIG. 4 additionally includes historicaldata relating to any unreturned and requested resources 18 at fields 308and 310, respectively. Where so configured, the user may cancel orinitiate further execution of the request by either pressing “F8” or“ENTER,” for instance. For marketing, efficiency and user convenienceconsiderations, embodiments consistent with the invention may includepreconfigured standby resource purchase scenarios within a display. Forinstance, the user may click or otherwise indicate a field or button toselect a first, preconfigured option presented on the display 300. Asshown in FIG. 4, the first option includes activating three standbyresources 18 for ten days each. Such an option may include similarcontent to a previous user request. A user of another embodimentconsistent with the invention may create and customize additional cannedpurchase scenarios to better match their own, unique requirement trends.

Prior to processing the request, the customer computer 12 may prompt theuser to confirm the particulars of the request at block 216. Forinstance, the user may review a display that reads, “Please press F1 toconfirm your request for four processors for ten days each, or F2 tochange the request.” Thus, the user may modify or cancel the request atblock 218.

Should the user alternatively wish to continue with their originalrequest at block 214, program code 42 at block 222 may determine if anystandby resources 18 are currently unreturned. To this end, the programcode 42 may check a register or other memory 19 of the customer computer12 tracking resource dispatches to ascertain the current number ofunreturned standby resources 18. Such a feature may be implemented wherethe presence of an unreturned resource 18 affects the subsequentavailability of the remaining standby resources 18. For instance, policyand program code 42 of one embodiment consistent with the inventionconditionally prevents a user from activating additional standbyresources 18 at block 225 while other standby resources 18 remainunreturned at block 222. Instead, the program code 42 at block 224 mayissue a notification to the user at the customer computer 12 advisingthem to first return one or more of the outstanding resources per policyspecifications.

Where the program code alternatively determines at block 222 of FIG. 3that no standby resources 18 are unreturned, the request of block 214may be processed by the program code 42. Where so configured, the usermay assign requested standby resources 18 at blocks 226 and 228. Forinstance, the user may assign standby resources 18 to particularpartitions 134 as needed at block 228.

The exemplary display 400 of FIG. 5 shows an interface for use inassigning standby resources 18 to the customer computer 12 in accordancewith the principles of the present invention. The display 400 mayinclude identification of the customer computer 12, as well as a field402 where a user may designate the name or other identifier of thepartition 134 they wish to receive one or more of the requested standbyresources 18. As such, an embodiment consistent with the invention mayinclude multiple such displays 400 for different partition assignments.In the display of FIG. 5, the same or another field 408 may allow theuser to allocate the requested standby resources 18 to the sharedprocessor pool. As discussed herein, the shared processor pool may actas a universal resource that each of partitions 134 may use forprocessors as needed.

At block 406 of the display 400 of FIG. 5, the user may specify aminimum number of standby resources 18 for a partition 134 or pooldesignated in fields 402 and 408, respectively. This minimum number mayrepresent the number of standby resources 18 that the user minimallyrequires and/or desires to be active at a given partition. The user maythus assign the minimum number as a function of a partition's current oranticipated workload. In embodiments consistent with the invention,program code 42 may, but typically will not automatically reclaim thenumber of standby resources 18 designated as minimally necessary. Forinstance, a number of minimally designated standby resources may becommunicated to the billing computer 14 separately or in aggregate.Thus, despite their unreturned status, the program code 42 of oneembodiment consistent with the invention will not interrupt the activityof unreturned standby resources 18. This feature prevents loss andinterruption of processes critical to the user. Conversely, and asdiscussed below in greater detail, the program code 42 may be permittedto recover a number of unreturned resources that have not been minimallydesignated without substantially interrupting operations.

In terms of FIG. 3, block 230 reflects where a user may designatestandby resources 18 as being critical. While the flowchart of FIG. 3shows the user designating the minimum number of standby resources 18prior to activation/utilization at block 234, it will be appreciated byone of skill in the art that a user may change such a designation inresponse to a changing condition at any time during a capacity on demandoperation.

A user or provider may alternatively prefer that requested standbyresources 18 be automatically, rather than manually, assigned at block232 of FIG. 3. As such, program code 42 may assign the requested standbyresources 18 at block 232 per system 10 protocol without requiringdirect user attention. This feature may be particularly beneficial incertain applications where the program code 42 can effectively monitorand assign resources, and/or in systems having high frequencies ofstandby resource requests.

In either case, the user may utilize at block 234 the standby resources18 requested and assigned at blocks 226-232. The user may thus accessthe requested standby resources 18 in a manner identical or similar tothat regarding the baseline processors 16 of the customer computer 12.More specifically, the user may utilize the standby resources 18 asnormal until the requested duration of the standby resources 18 expiresat block 236. At such time, the user may receive at block 238notification of the expiration or pending expiration of one or morestandby resources 18.

Where not automatically recovered by program code 42 at block 241, theuser may elect to relinquish unreturned standby resources 18 at blocks240. In one embodiment consistent with the invention, the user maydesignate at block 242 a partition 134 and/or standby resources 18 to bereturned using processes similar to those used originally to assign thestandby resources at blocks 228-230. Where desired, such returnprocesses may include a display similar to that of FIG. 5.

In either case, the user may capitulate to the return of standbyresources 18 at block 244. The relinquishment of the unreturned standbyresources 18 may be recorded at block 248 for accountability purposes.Where so configured, the return action is recorded locally at thecustomer computer 12 and/or remotely at the billing computer 14.

The user may alternatively decline relinquishing unreturned standbyresources 18 at block 240. As discussed herein, this decision may beimputed automatically from minimum designations and other settings madeat block 230. Notification of the user's presumed intent to declinereturn of standby resources 18 may be reviewed by the user forconfirmation and/or accountability purposes at block 246. Suchnotification may include a text message apprizing the user of anelevated or otherwise changed billing rate with regard to the unreturnedstandby resources 18. Recording of the notification and the user'sdecision may be accomplished at block 248.

Some period later, the user may receive and review an invoice from theprovider at block 250. For instance, an electronic mail invoice mayarrive via the network 36 at the customer computer 12. The user may userecords stored locally at the customer computer 12 to verify theaccuracy of the invoice particulars at block 254. Where desired, programcode 42 may automatically conduct such a comparison. Thus, the user maythen either pay the invoice or contact the provider or their agent atblocks 254 or 256, depending on the outcome of the determination.

FIG. 6 shows a flowchart having process steps suited for execution bythe billing computer 14 of FIG. 1. More particularly, the exemplarymethod steps regard actions that may be taken by program code 43 of thebilling computer 14. The program code 43, in one respect, determines andaccounts for unreturned standby resource usage on the customer computer12. At block 504, the program code 43 may attempt to query softwareand/or hardware of the customer computer to initiate a determinationprocess. Such a query may presume that a contract and necessarycommunication links between a customer and the provider have beenestablished. As such, the query attempt of block 504 may involve anetwork communication. The communication may include programmaticinstructions and/or codewords, and may further coincide with a billingcycle. For instance, such queries may be periodically conducted on amonthly and/or a daily basis.

Where the billing computer 14 is unsuccessful in accessing the softwareand/or memory 19 of the customer computer 12 at block 506, the providermay attempt to contact the user at block 508 via another communicationmechanism. For instance, the provider may fax, write or telephone theuser to inform them of the broken communication link and any consequentchange in service. Conversely, a successfully established link at block506 may be authenticated by the billing computer 14 at block 510. Suchauthentication techniques may involve encoded transmission techniquesthat are known to those of skill in the art.

The billing computer 14 may query memory 19 of a smart card or othercomponent of the customer computer 12 at blocks 512-518. For instance,the billing computer 14 may retrieve a number from the memory 19corresponding to the number of standby resources 18 currently availableto the user at block 512. Similarly, the billing computer 14 mayretrieve data from the customer computer 12 at block 514 that isreflective of the number of standby resources 18 currently active withinthe customer computer 12. At block 516, the billing computer 14 maysample data indicative of the number of unreturned standby resources 18that are active on the customer computer 12.

Another step at block 518 concerns retrieving a running or total countof outstanding/unreturned resource days or other billable unit ofmeasurement. As described in greater detail in connection with FIG. 8,the number of unreturned resource days may be determined by incrementinga count for each day a standby resource remains unreturned. While such adetermination is typically accomplished at the customer computer 12, thenumber of unreturned resource days of another embodiment consistent withthe invention may be determined actively by the billing computer 14. Forinstance, program code 43 of such an embodiment may process otherinformation retrieved from the customer computer 12 and/or local billingmemory 28 to determine unreturned resource usage.

FIG. 7 shows the content of an exemplary report 600 suited for retrievalby the billing computer 14 at blocks 510-518 of FIG. 6. The serialnumber 614 and type 615 of the customer computer 12 may be listed in thereport 600. The report 600 may further include the number of systemprocessors 602, as well as the number of unreturned and availablestandby processors in fields 604 and 608, respectively. Where desired,the report 600 includes historical data regarding requested andunreturned processor days, 610 and 612, respectively. While the fields602-615 of the report 600 of FIG. 7 and blocks of 510-518 of FIG. 6 mayhave particular application with regard to certain embodiments of thepresent invention, one of skill in the art will appreciate that otherdata may alternatively and/or additionally be communicated to thebilling computer 14 in accordance with the principles of the presentinvention.

Some or all of the data retrieved from the customer computer 12 atblocks 510-518 of FIG. 6 may be automatically compared at block 520 todata stored locally at the billing computer 14. Where implemented, thisfeature may provide an additional layer of reporting accuracy. Forinstance, the provider may manually address any discrepancies byinspecting the customer computer 12. In any case, the number ofunreturned processor days retrieved at block 518 of FIG. 6 is processedat block 524. For instance, the number of unreturned processor days maybe multiplied by a billing rate set at block 522 by the provider. Such abilling rate may vary from a normal operating rate for standby resources18 not sharing an unreturned status. As such, an embodiment of thepresent invention provides a manner of discerning unreturned resourceusage from that of other, expected standby resource usage. The abilityto account for and distinguish the unreturned standby resource dayspermits discerning billing practices that allow, for instance, theunreturned resource days to be billed out at a higher or otherwisedifferent rate than other standby resource days.

A billable amount determined at block 524 may then be combined alongwith other invoice data at block 526. For instance, a customer invoiceproduced at block 528 may include both unreturned resource day data andexpected usage data that is correlated to standby resource days rentedat a regular rate.

FIG. 8 is a flowchart having method steps suited for execution by thecomputer system 10 of FIG. 1. More particularly, the steps areconfigured to determine unreturned resource usage in a manner that isconsistent with the principles of the present invention. The customercomputer 12 typically accomplishes the process steps 700-732 of FIG. 8.For instance, program code 42 of the customer computer 12 may initiateactivation of requested standby resources 18 at block 700. As discussedherein, the processes of block 700 may include prompting the user toassign a standby resource 18 to applicable partitions 134, as well asinitiating dispatch processes of the partition manager 136.

At block 702, the program code 42 may initiate storage of theparticulars of the standby resource request of block 700. Suchparticulars may include the number, identifier, duration and dispatchtime of the requested standby resources 18. A counter program and/or aregister of the customer computer 12 may begin decrementing the timecorresponding to the duration of the purchased standby resources 18 atblock 704. That is, the time contractually prearranged for an activatedstandby resource may run down at block 704 until it expires at block706.

Expiration of the duration of the activated standby resource 18 may berecorded at block 708, and the program code 42 may initiate notificationto the user of its expired status at block 710. Following thisnotification of block 710, the program code 42 may receive instructionsfrom the user to relinquish unreturned standby resources 18 at block712. Where the user releases the standby processes, the program code 42will reclaim them at block 714. Where desired for accountabilitypurposes, the reclamation of the standby resources 18 is recorded atblock 716 as expected resource usage.

Should the unreturned standby resources 18 not be voluntarily besurrendered at block 712, then the program code 42 may determine atblock 718 of FIG. 8 whether the unreturned standby resources 18 areprotected under a minimum designation. Such a designation may beassigned by a user to ensure uninterrupted processing for criticalapplications. In another example, an operating system or maliciousprogram running in a partition may prevent reclamation of a standbyresource 18. One of skill in the art will appreciate other scenarios andsettings exist where such reclaiming limitations may be invoked at block718. Where such protections and/or settings are not in place, a systempolicy may allow the program code 42 to automatically reclaim a numberof unreturned resources 18 at block 720. While such protections asafforded by minimum settings may be advantageous in certain contexts, itwill be understood by one of skill in the art that other embodimentsconsistent with the invention may reclaim unreturned standby resources18 irrespective of such settings. Such a condition may arise where acustomer has refused to comply with provider guidelines.

Conversely, where an unreturned standby resource 18 remainsunreclaimable at block 718, then the program code 42 may initiate arecorded count at block 722 for each unreturned standby resource. Thecount may increment at block 722 to coincide with the passage orrealization of a billing occurrence. As discussed herein, a suitablebillable occurrence may comprise a cycle, software prompt, and/or anymeasurable characteristic of resource performance, but typically includedays of operation, or some other temporal metric. The customer computer12 may display notification of the incrementing of block 722 to the userwhere appropriate at block 728. The count may continue to increment inthis manner until the unreturned standby resource 18 is recaptured atblock 724. Return of the outstanding standby resource at block 724 endsthe advance of the count at block 726.

In either case, the count may be maintained within memory 19 of thecustomer computer 12 in a manner that is accessible to the billingcomputer 14. Furthermore, the count is representative of the aggregatenumber of unreturned resource days. As such, the customer computer 12 ofone embodiment consistent with the invention may initiate output of theunreturned standby resource usage to the billing computer 14 at block732. Where so desired for processing or other considerations, programcode 43 of the billing computer 14 may retrieve only an aggregate numberrepresentative of all unreturned resource usage, irrespective ofindividual standby resource data.

While the present invention has been illustrated by a description ofvarious embodiments and while these embodiments have been described inconsiderable detail, it is not the intention of the applicants torestrict, or in any way limit, the scope of the appended claims to suchdetail. For instance, while networked communication links may present amost advantageous medium for information exchange in one embodiment ofthe present invention, another embodiment consistent with the inventionmay rely on other mechanisms. For instance, a business may print out ausage report using program code 42 of the invention. The report may besubsequently faxed or mailed to the provider or the provider's agent.Additional advantages and modifications will readily appear to thoseskilled in the art. The invention in its broader aspects is thereforenot limited to the specific details, representative apparatus andmethod, and illustrative example shown and described. Accordingly,departures may be made from such details without departing from thespirit or scope of applicant's general inventive concept.

1. A method for determining unreturned resource usage for a standbyresource within a data processing system, the standby resourcecomprising an allocatable component configured to affect thefunctionality of the data processing system and to be selectivelyactivated to address a computing need and having a specified window ofactivity, the method comprising: determining expected usage data of thestandby resource operating within the specified window of activity;determining unreturned usage data of the standby resource operatingoutside of the specified window of activity; processing the unreturnedusage data of the standby resource separately from the expected usagedata of the standby resource; and outputting the processed unreturnedusage data.
 2. The method for determining unreturned resource usage ofclaim 1, wherein determining the unreturned usage data further includesinitiating a count associated with the unreturned usage data in responseto the standby resource operating outside of the specified window ofactivity, and incrementing the count in response to detecting ameasurable billing occurrence.
 3. The method for determining unreturnedresource usage of claim 1, wherein determining the unreturned usage datafurther includes determining that the standby resource is unreclaimablebased upon a designation within the data processing system of at aminimum resource requirement, an operating system setting and a programsetting.
 4. The method for determining unreturned resource usage ofclaim 1, wherein determining the unreturned usage data further includesrestricting the activity of a second standby resource in response todetermining the unreturned resource usage.
 5. The method for determiningunreturned resource usage of claim 1, wherein determining the unreturnedusage data further includes reclaiming the standby resource.
 6. Themethod for determining unreturned resource usage of claim 1, whereindetermining the unreturned usage data further includes determining theunreturned resource usage data on a periodic basis.
 7. The method fordetermining unreturned resource usage of claim 1, wherein determiningthe unreturned usage data further includes determining the unreturnedresource usage without interrupting operation of the standby resource.8. The method for determining unreturned resource usage of claim 1,wherein processing the unreturned usage data of the standby resourcefurther includes storing the unreturned usage data separately from theexpected usage data.
 9. The method for determining unreturned resourceusage of claim 1, wherein processing the unreturned usage data of thestandby resource further includes comparing the unreturned usage data toredundant data stored separately from the unreturned usage data.
 10. Themethod for determining unreturned resource usage of claim 1, whereinoutputting the processed unreturned usage data further includesgenerating an invoice including the processed unreturned usage data. 11.The method for determining unreturned resource usage of claim 1, furthercomprising generating a request configured to initiate activation of thestandby resource.
 12. The method for determining unreturned resourceusage of claim 1, further comprising designating the standby resource asunreclaimable.
 13. The method for determining unreturned resource usageof claim 1, further comprising designating the standby resource to bereturned.
 14. An apparatus comprising: a computer including a standbyresource comprising an allocatable component configured to affect thefunctionality of the computer and to be selectively activated to addressa computing need and having a specified window of activity; and programcode in communication with the computer, the program code configured todetermine expected usage data of the standby resource operating withinthe specified window of activity, as well as unreturned usage data ofthe standby resource operating outside of the specified window ofactivity, the program code further configured to process the unreturnedusage data of the standby resource separately from the expected usagedata of the standby resource, and to output the processed unreturnedusage data.
 15. The apparatus of claim 14, wherein the program codeinitiates a count associated with the unreturned usage data in responseto the standby resource operating outside of the specified window ofactivity, and wherein the program code initiates incrementing the countin response to detecting a measurable billing occurrence.
 16. Theapparatus of claim 15, wherein the measurable billing occurrenceincludes at least one of a time unit, a day, a processor cycle, asoftware prompt and resource usage.
 17. The apparatus of claim 14,wherein the program code initiates restricting the activity of a secondstandby resource in response to determining the unreturned resourceusage.
 18. The apparatus of claim 14, wherein the program code initiatesstoring a record of the standby resource operating outside of thespecified window of activity.
 19. The apparatus of claim 14, wherein theprogram code initiates processing the unreturned usage data as afunction of a billable cost per measurable unit.
 20. The apparatus ofclaim 14, wherein the program code initiates storing the unreturnedusage data separately from the expected usage data.
 21. The apparatus ofclaim 14, wherein the program code initiates communicating the processedunreturned usage data to a billing computer.
 22. The apparatus of claim14, wherein the standby resource includes a processor, memory, aninterface, an input/output controller, an adaptor, a hardware device anda card.
 23. The apparatus of claim 14, wherein the program codeinitiates determining that the standby resource is unreclaimable. 24.The apparatus of claim 14, wherein the computer is a logicallypartitioned computer, and wherein the standby resource comprises atleast one of a processor or a memory asset.
 25. A program product,comprising: (a) program code configured on execution to determineexpected usage data of a standby resource comprising an allocatablecomponent configured to affect the functionality of a data processingsystem executing the program code and to be selectively activated toaddress a computing need and operating within a specified window ofactivity, as well as unreturned usage data of the standby resourceoperating outside of the specified window of activity, the program codefurther configured to process the unreturned usage data of the standbyresource separately from the expected usage data of the standbyresource, and to output the processed unreturned usage data; and (b) arecordable type computer recordable medium storing the program code.